SO YOU WANT TO GET A...
Any breed of dog can display aggressive behavior. Buying a Labrador or Golden Retriever is not going to guarantee that you will avoid aggression towards humans or animals, nor is adopting a Pit Bull a guarantee that you won't. See the section on aggression, above, to learn more about what causes aggression in dogs.
The breed of dog you choose should fit your lifestyle. Working breeds are very active and need more than an evening walk and a 6-week puppy class. All dogs need socialization, structure, environmental management and training.
***Responsible Breeder Checklist***
Do I really want a....